\thispagestyle{empty}
\pagenumbering{Alph}

\newpagecolor{SkyBlue}\afterpage{\nopagecolor}

\newcommand{\lycoverlinkcolor}{DarkSlateGray}

\begin{center}
\noindent

\newfontfamily{\ftcvtitleen}{Linux Libertine O}
\newfontfamily{\ftcvtexten}{Linux Libertine O}
\setCJKfamilyfont{ftcvtitlezh}{方正黑体_GBK}
\setCJKfamilyfont{ftcvmindmap}{方正楷体_GBK}


% Title.
\begin{tcolorbox}[
  halign=center,
  width=0.66\paperwidth,
  boxrule=1mm,
  boxsep=8mm,
  colback=Beige,
  colframe=WhiteSmoke,
]
{\fontsize{42pt}{42pt}\selectfont\CJKfamily{ftcvtitlezh}一 瓶 论 语}\\[20pt]
{\fontsize{36pt}{36pt}\selectfont\ftcvtitleen A~~~Bottle~~~of~~~Lún~~~Yǔ}
% Should've used a Sans font (Source Han Sans?) for the English title to match
% the Chinese title's style and to avoid the ugly (anti-pinyin style) tone marks.
% But I could not find a suitable Sans font with perfect tone marks, and I really
% like the classical looking of Linux Libertine O.
\end{tcolorbox}

\vspace*{\stretch{1}}


% Mindmap.
{
\newcommand{\mmscale}{0.81}
\newcommand{\lycovernode}[2]{\hyperlink{#1}{\textcolor{\lycoverlinkcolor}{#2}}}

\centering
\CJKfamily{ftcvmindmap}
\begin{tikzpicture}[
  mindmap,
  scale=\mmscale,
  every node/.style={concept, scale=\mmscale},
  concept color=Beige,
  grow cyclic,
  root concept/.append style={font={\fontsize{28pt}{28pt}\selectfont}},
  level 1/.append style={level distance=4.5cm, sibling angle=90, font={\fontsize{28pt}{28pt}\selectfont}},
  level 2/.append style={level distance=3cm, sibling angle=45, font={\fontsize{25pt}{25pt}\selectfont}}
]
  \node[root concept]{\lycovernode{topicjunzi}{君子}}
    child{ node{\lycovernode{topicxue2}{学}}
      child{ node{\lycovernode{topicwen2}{文}} }
      child{ node{\lycovernode{topicyinyue}{乐}} }  % vaguely implies '快乐'
      child{ node{\lycovernode{topiczhi4a}{智}} }
      child{ node{\lycovernode{topiczhi4}{志}} }  % roughly implies '恒'
    }
    child{ node{\lycovernode{topiczheng4}{政}}
      child{ node{\lycovernode{topiclian2}{廉}} }
      child{ node{\lycovernode{topichui4}{惠}} }
      child{ node{\lycovernode{topicyongren}{贤}} }  % 任人唯贤；陈力就列（己贤）
      child{ node{\lycovernode{topiczhong1}{忠}} }
      child{ node{\lycovernode{topicde2}{德}} }
    }
    child{ node{\lycovernode{topicli3}{礼}}
      child{ node{\lycovernode{topicchi3}{耻}} }  % roughly implies '不为'
      child{ node{\lycovernode{topicwen1}{温}} }  % roughly implies '色'
      child{ node{\lycovernode{topicqian1}{谦}} }
      child{ node{\lycovernode{topicjing4}{敬}} }
    }
    child{ node{\lycovernode{topicren2}{仁}}
      child{ node{\lycovernode{topicxiao4}{孝}} }
      child{ node{\lycovernode{topicyi4}{义}} }
      child{ node{\lycovernode{topicxin4}{信}} }
      child{ node{\lycovernode{topicyou3}{友}} }
      child{ node{\lycovernode{topicshu4}{恕}} }  % layout: 恕 - 君子 - 忠
    };
\end{tikzpicture}
}

\vspace*{\stretch{1}}


% Contact info.
{
\fontsize{20pt}{20pt}\selectfont\ftcvtexten
\href{https://www.abolybook.org}{\textcolor{\lycoverlinkcolor}{www.abolybook.org}}\\[2pt]
\href{mailto:abolybook@gmail.com}{\textcolor{\lycoverlinkcolor}{abolybook@gmail.com}}\\[12pt]
\href{https://creativecommons.org/licenses/by-nc-nd/3.0/}{\textcolor{\lycoverlinkcolor}{\ccbyncnd}}
}

\end{center}
